Adjustable bracket.



w. 0. GILBERT. ADJUSTABLE BRACKET.

APPLICATION FILEDMAY 9' I912.

Patented June 8, 1915,. I

THE NORklS PETERS CO., PHOTO-LITHO. WASHINGTON. D Ci To all whom it mayconcern:

stood as illustrative only, and no {the limits of the invention.

WILLIAM O. GILBERT, 0F ARBOWSMITH, ILLINOIS.

AnJusrABLE BRACKET.

Be it known that I, WILLIAM O. GILBEiiT,

a citizen of the United States, residing at Arrowsmith, in the county ofMcLean and State of Illinois, have invented certain new and useful 7Improvements in A'djustable Brackets; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art towhich it apper- 'tainsto make and use the same.

This invention is an adjustable bracket adapted more particularly foruse upon inclined roofs, the objects of the invention being, first, tofirmly support a staging at various distances from the apex ofthe rooffor the purpose of constructing or repairing chimneys, or the like, atthe apex ofthe roof or at points intermediate of thea'pex and the eavesthereof; second, to support the stage in'a substantially horizontalposition irrespective of the slant .of the roof, "and,

third, to provide a bracket for general use which isof simple andinexpensive construc 25.

tion, the parts of which may be retained in unyielding operativeposition, and which may be packed into a small spacetofacilr'tateitransportation. T

The bracket oomprises' a base member, parallel upright members'pivotally secured near one end to the base member, said par- "allelupright members being trussedto retain'them in'ri'gid upright position,a weightcarrying member, pivotally connected to the "base member, havingmeans for adjustably mounting the same between the upright members, and-means for retaining the bracket upon a roof.

In; the accompanying drawings, forming a part of this application,I'have illustrated one embodiment of the invention, but the constructionshown therein is. to be undert aszdefinlng Figure 1 is a perspectiveview of the bracket applied to a roof. Fig. 2 is a side elevation of thebracket with the extension 'member removed. Fig. 3 is a plan view of the'bracket folded into compact position.

Fig. 4 is a detail view of theextension "member.

'The brackets of thisinvention are preferably arranged lpairs, whichoperate to support a platform. Each bracket is ,provided with a basemember, a weight-carry.-

ing member pivoted to the base member,

Specification of Letters Patent.

to form .a ri

PatentedJune s, 1915.

Application filed May 9, 1912. Serial No. 696,263.

and an upright member preferably arranged T in pairs, provided withmeans coeperating with the weightrcarrying member and the base memberfor supporting the weight-carrylng member in a substantially horizontalposition. The base member is provided with j an extension-member which'may be united to the bracketfor the purpose of positioning thebracket-at various places below the apex of the roof. The upright memberis preferably trussed and it is so united to the other members of thebracket as to preclude yielding movement of the upright member relativeto the base member. g

In the embodiment of the inventionillustrated in the accompanyingdrawings, the

base member is composed preferably of two parallel bars 5, provided witha plurality of oppositely positioned holes 6.

Hooks"? preferably in the form of angle irons are removably secured,asby bolts 8,

member. 1 v A weight-carrying member-9 is 'pivotally secured at.10itothis base member 5, said weight carrying "member being preferably gidconnection the base positioned between the parallel bars 5'of the basemember in order to facilitate the'fold- .ing of the 'parts of' thebracket into a small space for transportation and the like. When theweight-carrying member is folded between the'base members,'it rests uponthe plate a of said base member. This weightoarrying member may be ofany suitable material, but to reduce the weight, cost of the strength ofthe parts, I prefer to fmake the member 9 of a plurality of'parallel Istrips of wood whicha're. separatedby a metallic plate or'stripll'extendingthe full length of the' weight-carrying member, saidparallel strips 9 and metallic plate 11 being bolted or otherwisesecured together. This v member] is provided, also, with a plurality 'oftransverse holes 12 which register with some of the holes 6 within, thebase member and through which holes 6, 12,"a bolt or other fasteningmeans may bep'assed tofretain the'parts in a folded position. The undersurface of this base member is providedwith a pluralitylof transversegrooves 13, the purpose for which will be hereinafter 3 set forth. I v vThe upright member is preferably composed of twoparallel bars 14;, eachof which is provided 'withla plurality of holes'forw .manufacture, andat the same time retain r apertures 15, the holes of one bar beingarranged opposite to those of the other bar for the purpose of receivinga bolt 16. This bolt is adapted to be positioned at various places onthe upright part to correspond to the slant of the roof.

The bolt 16 cooperates with the transverse grooves 13 of theweight-carrying member to permit one end of said member to rest upon thebolts 16 and be freely movable in a vertical direction between theupright bars 14, the bolt operating to preclude longitudinal movement ofthe bar when said bolt engages one of the grooves 13. The parallel bars14 are preferably so positioned that the base member 5 and the weightcarrying member 9 may be compactly folded between the bars 14 of theupright member, as illustrated in Fig. 3.

To insure rigidity of the bracket and especially the upright memberthereof, I have provided the parallel bars 14 with a base 17, a topbrace 18, and have trussed the bars as at 19. The base 17 and the lowerpart of the truss cooperate to form a stop to limit v the movement ofthe upright member in one direction and serve also as a rest to supportthe bars 14 in a vertical position. The base 17 is preferably curved, asat 20, to facilitate the movement of the upright member in a directionto fold the various parts of the bracket, the base 17 of said uprightmember operating to sustain the entire weight of the bracket during theoperation of folding parts to the position shown in Fig. 8.

The extension member, which cotiperates with the base member 5, iscomposed of a plurality of parallel sections 21, 22, each section beingprovided with a series of adjusting holes 23 and with bolts 24, 25 ateach end of the sections. The space between the inner sections 21 .ofthis extension member is substantially the same as the space between theparallel upright bars 14, thereby permitting the inner sections 21 to bepositioned on each side of the base member 5, where they may be retainedin transverse alinement with said members by bolts passing through holes23 of the sections 21, 22, and through holes 6 of the base member 5. Theunconfined ends of sections 22 may be provided with retaining hooks 7.If it is desired to position the bracket a considerable distance fromthe apex of the roof, bolt 24 may be removed, permitting these ends ofthe sections 21 to be secured to the end of the base member 5. i V

In operation, 1 preferably employ a pair of these brackets spaced asuitable distance apart with a staging or platform 00 resting upon theweight-carrying members 9, as shown in Fig. 1.

When it is necessary to repair a chimney situated on an inclined roof ata considerable distance'from the apex thereof, the extension sections21, 22 are bolted end to end by bolt 24, the hooks 7 of section 22engaging the top of the roof at several points, shown in the drawings asat four points, said hooks operating to preclude movement of the bracketwith reference to the roof. Bolt 16 is moved on the upright member to aposition substantially on a horizontal plane with the bolt 10 of thebase 7, to upright member resting on its base in a vertical position,and weight-carrying member 9 is then moved between the parallel bars 14of the upright member until a groove 13 of said weight-carrying memberengages bolt 16, thereby retaining the parts in operative position. Thestaging or platform may now be placed upon the weight-carrying members9.

In transporting the device, bolt 16 is removed from the upright memberthereby permitting the weight-carrying member 9 to fallinto positionbetween the bars 5 of the base member; bolt 16 is then inserted throughone of the series of holes 15 in the upright bars 14, through the holes6 of the base member and the holes 12 of the weight-carrying member,thereby retaining .all the parts in a folded position in alinement witheach other. If desired, the sections of the extension member may be sospaced apart that they may also be positionedin the same transverseplane as the other members of the bracket, the bolt 16 engaging theholes 24 of the extension member and operating to firmly secure allparts of the bracket and the extension member into compact form.

' Having thus fully described my invention, what I claim as new anddesire to secure by LettersPatent, is

1. An adjustable bracketcomprising parallel base members, uprightmembers pivoted to said base members, a weight carrying member pivotallymounted for free movement between said base members, a plurality ofparallel extensionarms, one pair of which are pivotally secured to saidbase members by a bolt which serves as a pivot for said weight-carryingmember, and removable angular hooks secured tothefree ends of saidparallel extension arms, for the purposes specified.

2. An adjustable bracket comprising spaced base members having a stopplate on the lower face thereof, a weight carrying member pivotallymounted at one end and porting position, or folded into compact Intestimony whereof, afliX my signa' form, and vglhen so foldedth%uncon1fi]1O1ed end ture, in presence of two Witnesses.

of the Weig t carrying mem er Wil e posi- V f tioned between the trussedsection of the up-' WILLIAM GILBERT 5 right members and the stop plateof the-base Witnesses:

members, and means to lookthe various mem- J. H. J AWLE,

bers in a compact form. L. M. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

